<template>
  <section>
    <!--工具条-->
    <el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
      <el-form :inline="true">
        <el-form-item>
          <el-input v-model="keyword" placeholder="关键字"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="warning" v-on:click="keywordQuery">查询</el-button>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
      </el-form>
    </el-col>

    <!--列表v-loading="listLoading"
    :data="tableDatas" -表格数据
    v-loading="listLoading" -> 加载圈
    @selection-change="handleSelectionChange" -> 批量删除
    highlight-current-row  -> 选择一行数据，变亮
    -->

    <el-table :data="tableDatas" v-loading="listLoading"
              @selection-change="handleSelectionChange" highlight-current-row
              style="width: 100%;" :row-key="SpreadPages">
      <!--多选框-->
      <el-table-column type="selection" width="55" :reserve-selection="true">
      </el-table-column>
      <el-table-column type="index" width="70" label="序号">
      </el-table-column>

      <el-table-column prop="typeName" label="文章类型名称" width="120">
      </el-table-column>

      <el-table-column label="状态" width="110">
        <template slot-scope="scope">
          <span v-if="scope.row.status == 1" style="color: green">可用</span>
          <span v-else style="color: red">不可用</span>
        </template>
      </el-table-column>

      <el-table-column prop="createTime" label="添加时间" width="280">
      </el-table-column>

      <el-table-column prop="parentId" label="上级id" width="200">
      </el-table-column>


      <el-table-column label="操作">
        <template scope="scope">
          <el-button size="small" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>


    <!--工具条-->
    <el-col :span="24" class="toolbar">
      <el-button type="danger" :disabled="this.sels.length === 0" @click="handlePatchDel">批量删除</el-button>
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange" :current-page="currentPage"
                     :page-sizes="[5, 10, 15]" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper"
                     background
                     :total="totals" style="float:right;">
      </el-pagination>
    </el-col>


    <!--添加或修改界面-->
    <el-dialog :title="title" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">

        <el-form-item label="文章类型名称" prop="typeName">
          <el-input v-model="saveForm.typeName" auto-complete="off"></el-input>
        </el-form-item>

        <el-form-item label="状态" prop="status">

          <template>
            <el-radio v-model="saveForm.status" :label="0">不可用</el-radio>
            <el-radio v-model="saveForm.status" :label="1">可用</el-radio>
          </template>

        </el-form-item>

        <el-form-item label="上级id" prop="parentId">
          <el-input v-model="saveForm.parentId" auto-complete="off"></el-input>
        </el-form-item>

      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit">提交</el-button>
      </div>
    </el-dialog>
  </section>
</template>

<script>

import th from "element-ui/src/locale/lang/th";
import {LinearGradient} from "echarts/lib/util/graphic";

export default {
  data() {
    return {
      //1.分页查询相关数据
      totals: 0,//总记录条数
      currentPage: 1,//当前页,要传递到后台的
      pageSize: 5, //每页显示多少条
      tableDatas: [], //当前页数据

      listLoading: false, //加载圈

      title: '',

      //2.高级查询相关数据
      keyword: '',

      //3.删除相关数据

      //4.批量删除相关数据
      sels: [], //存储多选记录

      //5.添加和修改相关数据
      saveFormVisible: false,
      saveForm: {
        id: null,
        typeName: '',
        status: '',
        parentId: '',
      },

      //6.添加和修改校验规则-表单项校验
      saveFormRules: {
        typeName: [
          {required: true, message: '请输入文章类型名称', trigger: 'blur'}
        ],
        parentId: [
          {required: true, message: '请输入上级id', trigger: 'blur'}
        ],
      },

    }
  },
  methods: {
    //跨页操作
    SpreadPages(row){
      return row.id
    },
    //1.分页查询相关方法
    //1.1.获取列表数据
    getTableData() {
      this.listLoading = true //开启加载圈
      var params = {
        "currentPage": this.currentPage, //点击的当前第几页
        "pageSize": this.pageSize,   //当前页需要显示多少条数据
        "keyword": this.keyword    //模糊查询 ->关键字
      }
      this.$http.post("/articleType", params).then(request => {
        console.log(request)
        //接收参数添加到表格中(tableDatas),request.data ->固定写法
        this.tableDatas = request.data.list
        this.totals = request.data.total
        this.listLoading = false //关闭加载圈
      })
    },
    //1.2.选择第几页时触发
    handleCurrentChange(currentPage) {
      this.currentPage = currentPage //1 -> 2
      this.getTableData()
    },
    //1.3.选择每页显示记录条数时触发
    handleSizeChange(pageSize) {
      this.pageSize = pageSize
      this.getTableData()
    },

    //2.高级查询相关方法
    keywordQuery() {
      this.currentPage = 1; //从第一页开始查询
      this.getTableData();
    },

    //3.删除相关方法
    //row -> 当前行对象 获取一行数据
    handleDel(row) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.$http.delete("/articleType/" + row.id,).then(res => {
          if (res.data.success) {
            this.$message.success("操作删除成功")
            this.getTableData()
          } else {
            this.$message.error("服务器异常，删除失败")
          }
        }).catch(res => {
          this.$message.error("网络异常，请查看您的网络")
        })
      }).catch(() => {
        this.$message.error("已取消删除")
      });
    },

    //4.批量删除相关方法
    //4.1.选项改变时触发
    handleSelectionChange(val) {
      this.sels = val
    },

    //4.2.批量删除
    handlePatchDel() {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        let ids = this.sels.map(obj => obj.id)//获取批量删除对象的id，组成数组。
        this.$http.patch("/articleType", ids).then(res => {
          if (res.data.success) {
            this.$message.success("操作批量删除成功")
            this.getTableData()
          } else {
            this.$message.error("服务器异常，批量删除失败")
          }
        }).catch(res => {
          this.$message.error("网络异常，请查看您的网络")
        })
      }).catch(() => {
        this.$message.error("已取消批量删除")
      });
    },

    //5.添加和修改相关方法
    //5.1.点击添加弹出对话框
    handleAdd() {
      this.title = "添加数据"
      this.saveFormVisible = true //打开模态框
      this.saveForm = {
        id: null,
        typeName: '',
        status: '1',
        parentid: '',
      }
    },
    //5.2.点击修改弹出对话框
    handleEdit(row) {
      this.title = "编辑数据"
      this.saveFormVisible = true //打开模态框
      this.saveForm = Object.assign({}, row)
    },
    //5.3.提交表单数据操作数据库
    saveSubmit() {
      this.$refs.saveForm.validate((valid) => {
        if (valid) {
          this.$http.put("/articleType", this.saveForm).then(res => {
            if (res.data.success) {
              this.$message.success("操作" + this.title + "成功")
              this.getTableData()
              this.saveFormVisible = false
            } else {
              this.$message.error("服务器异常" + this.title + "未成功")
              this.saveFormVisible = false
            }
          }).catch(res => {
            this.$message.error("网络异常，请查看您的网络")
          })
        } else {
          this.$message.error("您有必须填写的数据未填写")
        }
      })


    },

  },
  mounted() {
    this.getTableData();
  }
}

</script>

<style scoped></style>
